books.google.co.nz - In the last few years, cheap webcams have revolutionized amateur astronomy by providing a very inexpensive alternative to purpose-made astronomical CCD cameras, which use refrigerated imaging chips and are thus extremely expensive. Webcams are capable of more advanced work than &#39;normal&#39; digital...https://books.google.co.nz/books/about/Lunar_and_Planetary_Webcam_User_s_Guide.html?id=2YfYNk4hHy8C&utm_source=gb-gplus-shareLunar and Planetary Webcam User's Guide